body {
	padding: 20px;
	margin: 0 auto;
	background-color: #E2E2E2;
	max-width: 1024px;
	color: #595B66;
	font-family: 'Microsoft Yahei', sans-serif;
}
h1,h2,h3,h4 {
	color: #797979;
    border-bottom: solid 1px #797979;
    padding: 5px 0;
}
h1, h2 {
    border-bottom: solid 2px #797979;
}
p {
	font-size: 15px;
    background: #797979;
    padding: 10px;
    border-radius: 5px;
    color: white;
    line-height: 2;
}
a {
	color: #FFD200;
}
.box {
	background-color: white;
	margin: 0 0 55px;
	display: flex;
	
}
.box-tall {
	height: 800px;
}
.box-item {
	width: 200px;
	height: 200px;
	line-height: 200px;
	vertical-align: middle;
	margin: 5px;
	background-color: #ffd200;
	font-size: 100px;
	color: white;
	text-align: center;
}
.item-tall {
	height: 400px;
	line-height: 400px;
}


.box-1 {
	flex-direction: row;
}

.box-2 {
	flex-direction: row;
	flex-wrap: nowrap;
}

.box-3 {
	flex-direction: row;
	flex-wrap: wrap;
}

.box-4 {
	flex-direction: row;
	flex-wrap: wrap-reverse;
}

.box-5 {
	flex-flow: row nowrap;
}

.box-6 {
	justify-content: flex-start;
}
.box-7 {
	justify-content: flex-end;
}
.box-8 {
	justify-content: center;
}
.box-9 {
	justify-content: space-between;
}
.box-10 {
	justify-content: space-around;
}

.box-11 {
	align-items: flex-start;
}
.box-12 {
	align-items: flex-end;
}
.box-13 {
	align-items: center;
}
.box-14 {
	align-items: baseline;
}
.box-14 .box-item{
	font-size: 88px;
	line-height: initial;
	text-decoration: underline;
}
.box-14 .item-tall{
	font-size: 122px;
	line-height: initial;
}
.box-15 {
	align-items: stretch;
}
.box-15 .box-item {
	height: auto;
}

.box-16 {
	flex-wrap: wrap;
	align-content: flex-start;
}
.box-17 {
	flex-wrap: wrap;
	align-content: flex-end;
}
.box-18 {
	flex-wrap: wrap;
	align-content: center;
}
.box-19 {
	flex-wrap: wrap;
	align-content: space-between
}
.box-20 {
	flex-wrap: wrap;
	align-content: space-around;
}
.box-21 {
	flex-wrap: wrap;
	align-content: stretch;
}
.box-21 .box-item {
	height: auto;
}

.box-22 .order {
	order: -1;
}
.box-item div{
	font-size: 14px;
	position: relative;
	top: -150px;
}

.box-23 .box-item{
	flex-grow: 1;
	width: auto;
}
.box-23	.grow-2 {
	flex-grow: 2;
}

.box-24 .box-item {
	width: 400px;
}
.box-24 .shrink{
	flex-shrink: 0;
}

.box-25 .box-item {
	flex-basis: 200px;
	width: 400px; /*width 将失去作用*/
}

.box-26 {
	height: 400px;
}
.box-26 .box-item {
	align-self: flex-start;
}
.box-26 .end {
	align-self: flex-end;
}